What is the difference between == and == in one condition?

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What’s the difference between == and === in a condition, for example:

if($string === $string2)

and 

if($string == $string2)
php
  • 1

    Jorge, I believe you already have an answer in another question that is not necessarily duplicated: http://answall.com/a/69576/8493

  • 1

    will be related? http://answall.com/questions/3186/qual-a-diferen%C3%A7a-entre-operadores-e-em-javascript

  • @Cesarmiguel this is in Javascript.

1 answer

6


The operator == only checks that left and right values are equal. The operator ===, checks if left and right values are equal, and also checks to see if they are of the same variable type.

$a == $b    Igual      TRUE se $a é igual a $b.
$a === $b   Idêntico   TRUE se $a é igual a $b, e eles são do mesmo tipo. (introduced in PHP 4)

Reference:
That question on the Soen;
Comparison in the documentation

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